What are the bases for construction quality control and what are the basic requirements for construc

What are the main aspects of the basis for construction quality control:

Supervising Engineer during the construction phase.

There are four main types of bases for quality control:

1) Engineering contract documents.

2) Design files.

3) The relevant quality management promulgated by the state and relevant departments.

legal and regulatory documents.

4) Special technical regulatory documents related to quality inspection and control.

Generally speaking, there are several types of technical regulatory bases for this type of specialization:

1) Acceptance standards for the construction quality of the project.

2) The special technical and regulatory basis for the quality control of engineering materials, semi-finished products and structural parts.

3) Technical regulations for controlling the quality of construction work activities.

4) Where the use of new technology, new technology, new materials of the project, should be tested in advance, and should have the authoritative technical department of the technical appraisal and relevant quality data, indicators, on this basis to develop the relevant quality standards and construction process regulations, as the basis for judging and controlling quality.

According to the specification GB50205-2001 "Code for Acceptance of Steel Structure Construction Quality".

When we manage the site, we generally mainly control the welding, mechanical connection and appearance painting of the construction unit.

After the embedded parts are sent to the sample and the steel structure is transported to the construction site, it is necessary to do a flaw detection test (the construction unit will generally say that the product has been done when it leaves the factory, and we generally require it to do it again on the site), and sometimes Party A has strict requirements, and it may be necessary to do some tests of steel structure materials (this aspect depends on the situation, and it is generally required by Party A).

The most important thing is that when the embedded parts are buried, the lofting must be retested and audited, because this is related to the assembly of the entire steel structure behind, the steel structure is generally done in the factory, if you have the embedded parts lofting wrong, then the rectification will be very troublesome.

When assembling, you need to pay attention to the operation of the construction unit, because the steel structure is a finished component, I have encountered some construction units in order to draw part of the steel structure finished materials on site to remove the inconvenient part of the assembly on the spot. (This aspect is generally rare, but what happens is a big problem, and you need to pay a little attention).

In terms of materials, it is necessary to pay attention to the bolts of mechanical connection, and the steel structure has gaskets, which must be put on for the safety of the structure as a whole.

There are also some small places that depend on the situation of each project, which are all in the specification.

The basic requirements of construction quality control are: strictly controlling the quality of inputs, strictly preventing the quality variation of systemic factors, strictly controlling the quality inspection and evaluation of sub-projects, and implementing the policy of "prevention first".

The basic requirements of construction quality control: to ensure the quality of the project with the quality of people's work; Strict control of the quality of inputs; Fully control the construction process, focusing on the quality of the process; Strictly control the quality inspection and evaluation of sub-projects; Implement the policy of "prevention first"; Strictly prevent the quality variation of systemic factors.

Quality: The degree to which a set of intrinsic characteristics satisfies a requirement. It can be understood that quality not only refers to the quality of the product, but also includes the quality of the product production process or the work of the process, and also includes the quality of the operation of the quality management system.

Construction quality: the quality of construction activities and products of construction projects, that is, the inherent characteristics of the project meet the needs of the construction unit and meet the requirements of national laws, administrative regulations and technical standards and specifications through construction. Includes the sum of the characteristics of the ability to meet all express and implied needs and expectations in terms of safety, functionality, durability, environmental protection, etc.

The human factor mainly refers to the quality of the leader, the theoretical and technical level of the operator, the physiological defects, carelessness, violation of discipline and regulations, etc. During construction, we should first consider the control of human factors, because people are the main body of the construction process, and the formation of project quality is affected by all the engineering and technical cadres, operators and service personnel who participate in the construction of the project, and they are the main factors in the formation of project quality.

1.It is necessary to clarify the main body of responsibility for quality control. The main body responsible for the quality control of the construction project is the project management department.

In order to implement quality control, the project management department should organize a quality management team or full-time quality inspection management personnel according to the specific situation of the project, and be responsible for project quality supervision, inspection, guidance and acceptance. Clarifying the subject of quality control responsibility is an important prerequisite for ensuring the construction quality of construction projects.

2.It is necessary to effectively decompose and implement quality objectives. The total quality objectives of construction projects shall be clearly stipulated in the project contract or task book. The basic way to achieve the overall goal is to carry out effective goal decomposition and implement it to specific positions and personnel, and goal decomposition and implementation is an effective way to achieve the overall goal.

3.It is necessary to strictly implement the construction plan and technical standards. The construction plan and technical standards are the basis and prerequisite for quality control, and the engineering quality control is to check whether there is a deviation between the actual situation in the construction and the scheduled construction plan and technical standards, whether the deviation is within the allowable range, whether corrective measures should be taken and what corrective measures should be taken.

Therefore, strict implementation of construction plans and technical standards is an important criterion for project quality control.

4.It is necessary to maintain the comprehensiveness and continuity of the control process. Quality control is the total quality management of all elements of a construction project and the entire production process.

Therefore, project quality control must start from the analysis of the basic characteristics of the project object, find out the regular problems and main contradictions that affect the quality of the project, and carry out comprehensive and focused management.

The main basis for construction quality control is as follows:

Engineering construction contracts and related contracts, technical specifications, procedures and standards, design documents, laws and regulatory documents on quality management promulgated by the state and relevant departments.

According to the definition of quality terms of GB T19000-2000 quality management system, construction quality control is a systematic process of pre-control, in-process control, and post-control of construction quality objectives under the guidance of a clear quality policy, through the planning, implementation, inspection and disposal of construction plans and resource allocation.

Links:1Pre-event quality control.

2.In-process quality control The key to in-process control is to adhere to quality standards, control the quality of key processes, work quality and control points of quality control.

3.Post-event quality control.

The above three links are complementary to each other's systematic processes, which are actually dynamic process quality control to achieve continuous improvement of quality management and quality control.

Basis:1Basis of commonality.

It refers to the basic conditions that are applicable to the construction stage and related to quality management, have universal guiding significance and must be observed.

Mainly include: engineering construction contracts; design documents; Design disclosure and drawing review records, design modifications and technical changes, etc.; Issued by the state and relevant departments.

Laws and regulatory documents related to quality management, such as the Construction Law, the Bidding Law, the Quality Management Regulations, etc.

2.Technical regulations.

It refers to the special technical regulations formulated for different industries and different quality control objects.

1. Contract documents and their technical regulations, as well as design documents, drawings and technical requirements and regulations prepared according to the provisions of the contract documents;

2. The relevant construction specifications, operating procedures, installation procedures and acceptance procedures adopted by the contract provisions;

3. The test report of the new materials, new processes, new technologies and new structures used in the project and the technical appraisal of the authoritative technical inspection department or the corresponding department;

4. Technical standards for base materials and products used in the project;

5. Technical standards and test operating procedures for test sampling.

Construction quality control includes:

1. Control of methods

The method control referred to here includes the control of technical schemes, technological processes, organizational measures, testing methods, and construction organization designs taken in the entire construction cycle of the project.

Whether the construction plan is correct or not is the key to whether the quality control of the project can be successfully realized. Often, due to poor consideration of the construction plan, the progress is delayed, the quality is affected, and the investment is increased. To this end, when formulating and reviewing the construction plan, it is necessary to combine the actual situation of the project, conduct a comprehensive analysis and comprehensive consideration from the aspects of technology, organization, management, technology, operation, economy, etc., and strive to make the scheme technically feasible, economically reasonable, advanced technology, effective measures and convenient operation, which is conducive to improving quality, speeding up progress and reducing costs.

2. Quality control of construction machinery and equipment

In the construction stage of the project, it is necessary to comprehensively consider various factors such as construction site conditions, building structure type, mechanical equipment performance, construction technology and method, construction organization and management, construction technology and economy, etc., to formulate and review the mechanized construction plan. Make it reasonably equipped, supporting the use, and organically linked, so as to give full play to the efficiency of construction machinery, and strive to obtain better comprehensive economic benefits. From the perspective of ensuring the construction quality of the project, it should focus on the selection of mechanical equipment, the main performance parameters of mechanical equipment and the use and operation requirements of mechanical equipment.

1) the selection of machinery and equipment: the selection of machinery and equipment should be based on local conditions, according to engineering conditions in accordance with the principles of advanced technology, economic reasonableness, production application, reliable performance, safe use, convenient operation and convenient maintenance, etc., implement the policy of combining mechanization, semi-mechanization and improved tools, and highlight the characteristics of the combination of machinery and construction, so that it has the applicability of the project, the reliability of the quality of the project, the convenience of use and operation and the safety inspection.

2) the use of machinery and equipment, operation requirements: the rational use of machinery and equipment, correct operation, is an important part of ensuring the quality of project construction, should implement the "man-machine fixed, principle, the implementation of fixed machine, fixed people, fixed post responsibility" three fixed system. Operators must conscientiously implement the rules and regulations, strictly abide by the operating procedures, and prevent safety and quality accidents.

3. Control of environmental factors

There are many environmental factors that affect the quality of engineering projects, including engineering and technical environments, such as engineering geology, hydrology, meteorology, etc.; Project management environment, such as quality assurance system, quality management system, etc.; Labor environment, such as labor combinations, labor tools, work surfaces, etc. The influence of environmental factors on the quality of the project, with complex and changeable characteristics, such as meteorological conditions are variable, temperature, humidity, wind, heavy rain, heat, severe cold all directly affect the quality of the project, often the previous process is the environment of the next process, the previous sub-project, the sub-project is the environment of the next sub-item, the sub-project. Therefore, according to the characteristics and specific conditions of the project, effective measures should be taken to strictly control the environmental factors that affect the quality.

1.Engineering contract documents;

2.design documents;

3.Laws and regulatory documents on quality management promulgated by the state and relevant departments;

4.Specialized technical regulatory documents related to quality inspection and control.

The main types of technical regulatory bases for this type of specialization are as follows:

1.Acceptance criteria for construction quality of engineering projects;

2.Specialized technical and regulatory basis for quality control of engineering materials, semi-finished products and components;

3.technical regulations for controlling the quality of construction work activities;

4.All projects that adopt new processes, new technologies and new materials should be tested in advance, and there should be technical appraisals of authoritative technical departments and relevant quality data and indicators, and on this basis, relevant quality standards and construction process regulations should be formulated as the basis for judging and controlling quality.

In order to ensure the quality of construction, the construction quality management system and engineering quality inspection system should be established and improved during construction, and the construction site should be equipped with necessary construction technical standards. The quality of the construction process of fire-fighting facilities shall be organized and implemented in accordance with the following requirements:

1) On-site inspection of the equipment, components and materials of various fire-fighting facilities on site, and can be used for construction only after passing the inspection.

2) Each process is quality controlled in accordance with the construction technical standards, and each process is inspected after completion, and the next process can only be entered after passing the inspection.

4) After the installation of fire-fighting facilities is completed, the construction unit shall debug in accordance with the relevant professional commissioning regulations.

5) After the commissioning, the construction unit shall provide quality control data and quality inspection records of the construction process of various fire protection facilities to the construction unit.

6) The supervising engineer organizes the personnel of the construction unit to conduct quality inspection on the construction process of fire protection facilities; The quality inspection records of the construction process shall be filled in accordance with the requirements of the construction and acceptance specifications of each fire protection facility.

In the quality control of Zhixiang in advance, the focus of control is on preparation;

The key to quality control in the matter is to adhere to quality standards, focusing on the control of process quality, work quality and quality control points;

The focus of post-event quality control is to find defects in construction quality, and to put forward measures to improve construction quality through analysis to keep the quality under control.

Article 52 of the Construction Law stipulates that the quality of survey, design and construction of construction orange sales projects must meet the requirements of the relevant national safety standards for construction projects, and the specific management measures shall be stipulated by the state.

When the national standards for the safety of construction projects cannot meet the requirements of ensuring construction safety, they shall be revised in a timely manner.